Car-axle box.



No. 828,845. PATENTED AUG.14, 1906.

Y E. DBNEGRE.

GAR AXLE B0X.

APPLICATION `FILED OCT. 20. 1902.

IINIrRD STATES PATENT @FFQE RDwARD DENRGRR, OF CHICAGO. ILLINOIS, ASSIGNOR To MCCORD a COMPANY, or CHICAGO, ILLINOIS, A CORPORATION or NEW JERSEY.

CAR-AXLE Box.

Specification of Letters Patent.

Patented Aug. 14, 190e.

To @ZZ whom, t may concern,.-

Be itv known that 1, EDWARD DENEGRE, a citizen of the United States, residing at ,Chicago, in the county of Cook and State of lllinois, have invented a certain new anduseful Improvement in Car-Axle Boxes, (Case No. 5,) of which the following is a full, clear, concise, and exact description, reference being had tothe accompanying drawings, forming a part of this specification.

My invention relates in general to car-axle boxes for railway-oars and the like, and in particular to the dust-guard arranged at the inner end of such boxes for excluding the dust from the interior of the box. Q

Prominent objects of the invention are to provide a simple, cheap, and durable form of i dust-guard, to prevent injury to either the guard or the axle by the rotationof the latter, to arrange for taking up automatically the wear on the guard occasioned by such rotation, to permit the ready removal and renewal of the part of the guard receiving such wear, to permit the removal and renewal of such part without removing the guard from the axle, and to accomplish the above results in a simple, practical, and expeditious manner.

In carrying out my invention, as hereinafter more particularly set forth, I` rovide a dust-guard adapted to be removab y secured to the end of the axle-box and construct the same with a circular opening slightlyrlarger than the axle, so that the latter can be arranged and rotated in said opening without coming into contact with the edges thereof. The guard is provided with a structurally separate wearing ring or collar having a circular opening the size of the axle, so that it fits closely upon the latter and receives the wear due to the rotation thereof. This wearing-ring could be made of a single piece and secured firmly to the guard 5 but asa referred arrangement it is made of two'ha ves or split, and these are easily separable from the main body of the guard, so that the ring can be easily removed when worn and another put in its place and also so that this can be done without removing the guard from the axle.

The guard is desirably constructed with a pocket or recess into which the wearing-ring can fit, so that the faces of the ring or collar and of the guard shall substantially coincide, and this pocket or recess is on'the outer face of the guard-*that is, the face Awhich is next the end ofthe axle-box-so that the coinciding faces ofthe ring or collar and guardflit against the end of the axle-box when the `guard is securedthereto. The ring or collar is allowed to project slightly from the face of thevguard, however, so 'that in realityit and not the guard comes into Contact with the end ofthe box and receives'the pressure or thrust which is exerted on the guard to hold it tightly against the axle-box, and the guard and ring or collar are provided with coperating inclined surfaces by which this thrust exerted upon the ring or collar tends to force the opposite halves thereof toward one another, and therefore toward the axle, with the result that the-halves are caused to make a :tight fit with the axle and to automatically take up the wear occasioned bythe rotation thereof. The wearing ring or collar is desirably made of soft metal, such as Babbitt metal Or the like, so as to have less grinding action on the axle.

The guard can be secured to the axle-box in any desired or suitable manner. It is shown herein as secured thereto by a clamping or interlocking arrangement set forth `and claimed in application of David W. Mc- Cord, Serial No. 61,382, led May 22, 1901, .for car-axleboxes.- In this arrangement the guard is provided with oppositely-arranged extensions or projections, and spring strips or straps are extended across these extensions and are securely held at their ends to the axle-box by means of lugs or the like.

In/the accompanying drawings, yFigures l and 2 are respectively end and longitudinal sectional views of a portion of a car-axle box embodying my present invention and a section of an axle therein. Fig. 3 is a view of the face or side of the dust-guardthereof which faces and fits against the box. Fig. 4 is a section taken on line 4 4 in Fig, 3. Fig. 5 is a view of the wearing ring or collar removed from the guard. Fig. 6 is a view similar to Fig. 3 of a modified form of guard, and Fig. 7 is a section taken on line 7 7 in Fig. 6. I

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Figs. 1 and 2 show a portion of a car-axle box A, which can be any form or style of box so far as general construction is concerned, and a portion of an axle B extended into said box. The box is provided with a dust-guard C, arranged, as usual, at the inner end of the box. The guard shown consists of a plateofthe halves toward one another.

like structure or frame having a circular opening 1 for the axle B, which opening is made slightly larger than the axle, so that contact does not occur between its edges and the axle. The guard structure or frame shown is also constructed with oppositely-arranged radial extensions or projections 2 2 for use in temporarily securing it to the axle-box. This is accomplished by spring strips or straps?) 3, arranged across said extensions, and lugs 4 4 on the end of the box, adapted to engage and hold the ends of the strips 3 3. The latter fit securely in the lugs 4 4 and are appreciably bent by the guard extensions 2 2 and by the ribs 5 5 thereon, so that considerable pressurel is exerted, forcing the guard toward and against the end of the axle-box A. The guard C is provided with a wearing ring or collar D, which is constructed to lit the axle B closely and is arranged upon the guard so as to inclose or surround the axle. A simple arrangement is to form the guard frame or structure with a pocket or recess and to fit the ring or collar D into the same, the guardframe thus forming a holder for the ring or collar. The ring or collar D is shown elliptical or oblong in form, in which case the pocket or recess is made of'corresponding shape. The guard C and the ring or collar D are provided with cooperating annular inclined surfaces 7 and 8, respectively, and the ring is made of such size with respect to the pocket and opening of the guard as to project slightly from the same, as well shown in Fig. 4. The ring or collar D is splitthat is, made in two halves-and the ends of the halves are cut away so as to interlock together, as shown in Figs. 4 and 5, and are yprovided with lugs 9 9 to prevent relative lateral movement. It will now be seen that when the guard is placed against the' end of the axle-box and secured tightly thereagainst the pressure exerted by the straps 3 3 willv come upon the surface or face of the ring D next said box, so that the ring, because of its projecting slightly beyond the corresponding face of the guard, will receive the pressure exerted to hold the guard against the box. This pressure upon the ring D causes its two halves to tend to move or slide together by reason of the cooperating inclined surfaces 7 and 8. Thus the two halves of the wearingring are continually forced against the axle, so as to make a tight and close fit therewith, and at the same time any wear on thering is automatically taken up by a slight movement y The wearing-ring D is desirably made of soft metal, such as Babbitt metal or the like, sb as to minimize or nullify the grinding action on the axle. It' will be seen from this arrangement and construction that the wearing-ring will be automatically held in lclose contact with the axle and the wear thereon will be automatically taken up, as previously explained. It will also be seen that the wearingring can be easily removed for inspection and replaced, also that it can be removed and a new one put in its place without removing the guard from the axle. It will be thus seen that by simply renewing the wearing-ring the guard can, in effect, be restored to its original condition, thus practically providing a new guard at a very slight expense. It 4will further be seen that the construction is simple, practical, and inexpensive.

In Figs. 6 and 7 I have shown a guard C constructed substantially as the guard C is and having a soft-metal wearing-ringD. Instead of being made in two pieces, however, as in the former case, this ring D is made of a single piece and is fitted securely in a pocket or recess in the guard, so that it cannot under ordinary circumstances be removed therefrom. It thus forms a permanent part of the guard and makes a tight joint with the axle.v

This arrangement has not the advantages of the previous arrangement, however, because the wear is not automatically taken up, nor can the wearing-ring be removed and renewed without removing the guard from the axle. l

It will be understood that I do not intend to limit myself to the specific arrangement or construction herein set forth. Various parts and features of the invention can be altered, changed, or modiiied without dep arting from the spirit of my invention.

Vhat I claim as my invention isl. In a car-axle box, the combination of a dust-guard, a split wearing-ring formed in two sections, the guard and ring being provided with corresponding inclined surfaces, whereby the clamping of the guard in position forces the sides of the ring against the axle, strips or straps extending across the guard, and means for engaging the ends of said strips or straps at the sides of the side edges of the guard, substantially as described.

2. In a car-axle box, the combination of a guard constructed with extensions or projections, a split wearing-.ring formed in two sections and carried by the guard, the guard and ring being provided with corresponding inclined surfaces, whereby the clamping of the guard in position forces the ring against the axle, strips or straps extending across said extensions or projections on the guard, and lugs at the side of the side edges of said extensions or projections for engaging the ends of the stripsA or straps, substantially as described.

In witness whereof I hereunto subscribe my name this 13th day of October, A. D. 1902.

EDWARD DENEGRE.

Witnesses A. MILLER BELFIELD, I. C. LEE.

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